diff --git a/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md b/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md
index 28ce589e..30baf99b 100644
--- a/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md
+++ b/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md
@@ -651,3 +651,8 @@ the principle that settles it, cited as "design 47 G A-n".
 - **A-336** (A-327, §200; principles 3, 7) Any start of a pipeline (a take-in, a package published) heard before its branch's catalog half is held starts its pipelines
   with no steps, never with steps placed from empty entries (§200: nothing new of a branch is acted on until its half is
   held); the path of A-327 places them once the half is held.
+- **A-337** (§712, ADR 0579 §2; principles 3, 7) "Refusing only what the revision causes" takes the trunk case as it
+  stands: the judge counts old sections and finds the declaring modules over every trunk-case manifest that decodes,
+  accepted by its own rules or not, so a trunk manifest the new rules refuse still counts and still declares. A trunk-case
+  manifest that does not decode is named in the verdict's report. How it is checked: G's judge on G's heads against
+  today's unmigrated trunk refuses none of G's 169 manifests for a count or a declarer (the dry run's re-creation).